PATIENT CHARACTERISTICS: Age: 18 and over Sex: Female Menopausal status: Premenopausal defined as estradiol at least 30 pg/mL, follicle stimulating hormone less than 25 mIU/mL, and luteinizing hormone less than 15 mIU/mL Performance status: ECOG 0-2 Life expectancy: Not specified Hematopoietic: Absolute neutrophil count at least 1,000/mm3 Platelet count at least 50,000/mm3 Hepatic: Bilirubin no greater than 2.0 mg/dL AST no greater than 3 times normal Renal: Stable renal function Pulmonary: No pulmonary embolism Other: Not pregnant or nursing Negative pregnancy test Fertile patients must use effective non-hormonal contraception during and for 12 weeks after study No other prior malignancy except nonmelanoma skin cancer or carcinoma in situ of the cervix No known hypersensitivity to luteinizing hormone releasing hormone (LHRH), LHRH agonist analogues, or any of the components of goserelin